Namesakes
Eurovision Song Contest Winners:
2 winners
Lenny Kuhr (a.k.a. Johanna) 1969 Netherlands 
Lena (a.k.a. Johanna) 2010 Germany
Fictional Characters from Song Titles:
2 characters
(character) Johanna 1966 Visions of Johanna
(character) Johanna 1979 Johanna (Judge's Song)
Fictional Characters from Television:
1 character
Abigail Deveraux (a.k.a. Johanna) 1965 Days of Our Lives
Icelandic Presidents and Prime Ministers:
1 prime minister
(prime minister) Jóhanna Sigurðardóttir 2009-2013
Notable Actors and Entertainers:
2 actors, 1 actor/comedian
Wieteke van Dort (a.k.a. Johanna) 1943-
Johanna ter Steege 1961-
Johanna Sällström 1974-2007
Notable Athletes:
2 tennis, 1 soccer
(tennis) Johanna Larsson 1988-
(tennis) Johanna Konta 1991-
(soccer) Dominique Janssen (a.k.a. Johanna) 1995-
Notable Musicians:
5 singers
Jenny Lind 1820-1887
Mieke Telkamp (a.k.a. Johanna) 1934-2016
Anneke Grönloh 1942-2018
Lenny Kuhr (a.k.a. Johanna) 1950-
Lena (a.k.a. Johanna) 1991-
Notable Politicians and Statespeople:
4 politicians
Hanja Maij-Weggen (a.k.a. Johanna) 1943-
Tineke Huizinga (a.k.a. Johanna) 1960-
Jolande Sap (a.k.a. Johanna) 1963-
Carola Schouten (a.k.a. Johanna) 1977-
Notable Writers:
3 authors
Johanna Spyri 1827-1901
Tonke Dragt (a.k.a. Johanna) 1930-
Tessa de Loo (a.k.a. Johanna) 1946-
Olympic Medalists:
3 bronze, 3 gold, 2 gold/silver, 1 bronze/silver, 1 gold/bronze, 1 gold/silver/bronze, 1 silver, 1 silver/gold
(silver/gold) Marie Braun (a.k.a. Johanna) 1928 swimming - 400 m freestyle; swimming - 100 m backstroke
(gold) Jopie Selbach 1936 swimming - 4x100 m freestyle relay
(gold) Gerda van der Kade-Koudijs (a.k.a. Johanna) 1948 4x100 m relay
(bronze/silver) Hannie Termeulen 1948; 1952 swimming - 4x100 m freestyle relay; swimming - 100 m freestyle
(gold/bronze) Siiri Rantanen (a.k.a. Johanna) 1952; 1956; 1960 cross-country skiing
(silver) Johanna Lüttge 1960 shot put
(bronze) Catharina Beumer (a.k.a. Johanna) 1964 swimming - 4x100 m freestyle relay
(gold) Ans Schut 1968 speed skating
(gold/silver) Johanna Schaller 1976; 1980 100 m hurdles
(bronze) Johanna Ikonen 1998 ice hockey
(bronze) Johanna Sjöberg 2000 swimming - 4x100 m freestyle relay
(gold/silver) Femke Heemskerk (a.k.a. Johanna) 2008; 2012 swimming
(gold/silver/bronze) Marleen Veldhuis (a.k.a. Johanna) 2004; 2008; 2012 swimming
Other Royalty:
2 princess consorts
Johanna Beatrix, Princess of Liechtenstein 1644-1676 Liechtenstein
Georgina, Princess of Liechtenstein (a.k.a. Johanna) 1943-1989 Liechtenstein